/* 健身器材主题 —— 近黑炭 + 热橙，强视觉 Hero */

/* Oswald 本地字体：仅 latin 600/700（减少本地 php -S 并发排队） */
@font-face {
  font-family: "Oswald";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("fonts/oswald-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Oswald";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/oswald-latin-700-normal.woff2") format("woff2");
}

:root {
  --nv-primary: #ff3d00;
  --nv-primary-dark: #d93600;
  --nv-accent: #ff3d00;
  --nv-accent-dark: #e03600;
  --nv-text: #111827;
  --nv-text-muted: #64748b;
  --nv-border: #e2e8f0;
  --nv-bg: #fafafa;
  --nv-bg-alt: #f1f5f9;
  --nv-radius: 6px;
  --nv-shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);
  --nv-shadow-lg: 0 18px 48px rgba(0, 0, 0, .14);
  --nv-container: 1200px;
  --fx-ink: #0a0a0b;
  --fx-ink-2: #141416;
  --fx-display: "Oswald", "DIN Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --fx-body: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

.nv-sr-only {
  position: absolute !important;
  width: 1px !important; height: 1px !important;
  padding: 0 !important; margin: -1px !important;
  overflow: hidden !important; clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important; border: 0 !important;
}

body.nv-site,
body.nv-install {
  font-family: var(--fx-body);
  font-size: 15px;
  line-height: 1.7;
  color: var(--nv-text);
  background: var(--nv-bg);
  -webkit-font-smoothing: antialiased;
}

body.nv-theme-fitness h1,
body.nv-theme-fitness h2,
body.nv-theme-fitness .fx-title,
body.nv-theme-fitness .fx-hero-title {
  font-family: var(--fx-display);
  letter-spacing: .02em;
  text-transform: uppercase;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 600; }

.nv-container { width: 100%; max-width: var(--nv-container); margin: 0 auto; padding: 0 20px; }

/* ---------- 按钮 ---------- */
.nv-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 11px 22px; border: 1px solid transparent; border-radius: var(--nv-radius);
  font-size: 15px; font-weight: 500; cursor: pointer; transition: all .18s ease;
  background: var(--nv-bg-alt); color: var(--nv-text); white-space: nowrap;
}
.nv-btn:hover { transform: translateY(-1px); }
.nv-btn.is-primary { background: var(--nv-accent); color: #fff; }
.nv-btn.is-primary:hover { background: var(--nv-accent-dark); }
.nv-btn.is-outline { background: transparent; border-color: rgba(255, 255, 255, .5); color: #fff; }
.nv-btn.is-outline:hover { background: rgba(255, 255, 255, .12); }
.nv-btn.is-sm { padding: 8px 16px; font-size: 14px; }
.nv-btn.is-block { display: flex; width: 100%; margin-top: 8px; }

/* ---------- 头部 ---------- */
.nv-header { position: sticky; top: 0; z-index: 50; background: rgba(10, 10, 11, .92); border-bottom: 1px solid rgba(255,255,255,.08); backdrop-filter: blur(10px); }
.nv-header > .nv-container { max-width: 1400px; }
.nv-header .nv-logo-text,
.nv-header .nv-nav-link { color: rgba(255,255,255,.82); }
.nv-header .nv-nav-link:hover,
.nv-header .nv-nav-link.is-active { color: #fff; border-bottom-color: var(--nv-accent); }
.nv-header .nv-nav-caret::before { border-color: rgba(255,255,255,.55); }
.nv-header .nv-nav-item.is-open .nv-nav-caret::before,
.nv-header .nv-nav-item:hover .nv-nav-caret::before { border-color: var(--nv-accent); }
.nv-header .nv-member-user { color: rgba(255,255,255,.85); }
.nv-header .nv-logo-mark { background: var(--nv-accent); border-radius: 4px; }
.nv-header .nv-lang-current {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.18);
  color: rgba(255,255,255,.92);
  box-shadow: none;
}
.nv-header .nv-lang-current:hover,
.nv-header .nv-lang-current[aria-expanded="true"],
.nv-header .nv-lang-switch:hover .nv-lang-current,
.nv-header .nv-lang-switch:focus-within .nv-lang-current {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,61,0,.45);
  box-shadow: 0 6px 18px rgba(0,0,0,.28);
}
.nv-header .nv-lang-globe { color: #ff8a5c; }
.nv-header .nv-lang-badge {
  background: rgba(255,61,0,.18);
  color: #ff8a5c;
  border-color: rgba(255,61,0,.35);
}
.nv-header .nv-lang-list {
  background: #161618;
  border-color: rgba(255,255,255,.1);
  box-shadow: 0 18px 44px rgba(0,0,0,.45);
}
.nv-header .nv-lang-list a { color: rgba(255,255,255,.72); }
.nv-header .nv-lang-list a:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
}
.nv-header .nv-lang-list a.is-active {
  color: #ff8a5c;
  background: rgba(255,61,0,.12);
}
.nv-header .nv-lang-opt-code {
  color: rgba(255,255,255,.55);
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.12);
}
.nv-header .nv-lang-list a.is-active .nv-lang-opt-code {
  color: #ff8a5c;
  background: rgba(255,61,0,.16);
  border-color: rgba(255,61,0,.35);
}
.nv-header .nv-auth-btn.is-login {
  color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.18);
  box-shadow: none;
}
.nv-header .nv-auth-btn.is-login:hover {
  color: #fff;
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.32);
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
}
.nv-header .nv-auth-btn.is-register {
  color: #fff;
  background: var(--nv-accent, var(--nv-primary));
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(255,61,0,.28);
}
.nv-header .nv-auth-btn.is-register:hover {
  background: #ff5520;
  box-shadow: 0 10px 24px rgba(255,61,0,.38);
}
.nv-header .nv-nav-toggle { border-color: rgba(255,255,255,.25); }
.nv-header .nv-nav-toggle span { background: #fff; }
.nv-header .nv-btn.is-primary { border-radius: 4px; }
.nv-header-inner { display: flex; align-items: center; gap: 28px; height: 80px; }

.nv-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 600; flex-shrink: 0; }
.nv-logo-mark {
  width: 32px; height: 32px; border-radius: 8px; background: var(--nv-primary); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 17px;
}
.nv-logo-img {
  display: block; height: 58px; width: auto; max-width: 280px;
  object-fit: contain; object-position: left center;
}
.nv-logo.has-image .nv-logo-text { font-size: 16px; font-weight: 600; }
.nv-logo.is-image-only { gap: 0; }
.nv-logo-text { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.nv-nav { display: flex; gap: 34px; margin-left: auto; align-items: center; }
.nv-nav-link { font-size: 17px; color: var(--nv-text-muted); padding: 6px 0; border-bottom: 2px solid transparent; transition: color .18s ease, border-color .18s ease; }
.nv-nav-link:hover { color: var(--nv-primary); }
.nv-nav-link.is-active { color: var(--nv-primary); border-bottom-color: var(--nv-primary); }

/* 产品分类下拉 */
.nv-nav-item { position: relative; display: flex; align-items: center; }
.nv-nav-link-row { display: inline-flex; align-items: center; gap: 4px; }
.nv-nav-caret {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px; padding: 0; border: 0; background: transparent;
  cursor: pointer; position: relative; flex: 0 0 auto; border-radius: 6px;
}
.nv-nav-caret::before {
  content: ''; display: block; width: 7px; height: 7px; margin: 0 auto;
  border-right: 1.5px solid var(--nv-text-muted); border-bottom: 1.5px solid var(--nv-text-muted);
  transform: rotate(45deg) translate(-1px, -1px); transition: transform .22s ease, border-color .18s ease;
}
.nv-nav-item.is-open .nv-nav-caret::before,
.nv-nav-item:hover .nv-nav-caret::before { border-color: var(--nv-primary); transform: rotate(225deg) translate(-1px, -1px); }
.nv-nav-dd {
  position: absolute; top: calc(100% + 10px); left: 50%; z-index: 80;
  min-width: 200px; padding: 8px; margin: 0;
  background: #fff; border: 1px solid var(--nv-border); border-radius: 12px;
  box-shadow: 0 14px 36px rgba(15, 23, 42, .12);
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translate(-50%, 10px) scale(.98);
  transform-origin: top center;
  transition: opacity .22s ease, transform .22s cubic-bezier(.22, 1, .36, 1), visibility .22s;
}
.nv-nav-dd::before {
  content: ''; position: absolute; left: 0; right: 0; top: -14px; height: 14px;
}
.nv-nav-item:hover .nv-nav-dd,
.nv-nav-item:focus-within .nv-nav-dd,
.nv-nav-item.is-open .nv-nav-dd {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translate(-50%, 0) scale(1);
}
.nv-nav-dd-link {
  display: block; padding: 9px 12px; border-radius: 8px; font-size: 14px;
  color: var(--nv-text-muted); white-space: nowrap;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.nv-nav-dd-link:hover { background: var(--nv-bg-alt); color: var(--nv-primary); }
.nv-nav-dd-link.is-active { color: var(--nv-primary); font-weight: 600; background: color-mix(in srgb, var(--nv-primary) 8%, #fff); }
.nv-nav-item:hover .nv-nav-dd-link,
.nv-nav-item.is-open .nv-nav-dd-link {
  animation: nvNavDdIn .28s ease both;
}
.nv-nav-item:hover .nv-nav-dd-link:nth-child(1),
.nv-nav-item.is-open .nv-nav-dd-link:nth-child(1) { animation-delay: .02s; }
.nv-nav-item:hover .nv-nav-dd-link:nth-child(2),
.nv-nav-item.is-open .nv-nav-dd-link:nth-child(2) { animation-delay: .05s; }
.nv-nav-item:hover .nv-nav-dd-link:nth-child(3),
.nv-nav-item.is-open .nv-nav-dd-link:nth-child(3) { animation-delay: .08s; }
.nv-nav-item:hover .nv-nav-dd-link:nth-child(4),
.nv-nav-item.is-open .nv-nav-dd-link:nth-child(4) { animation-delay: .11s; }
.nv-nav-item:hover .nv-nav-dd-link:nth-child(5),
.nv-nav-item.is-open .nv-nav-dd-link:nth-child(5) { animation-delay: .14s; }
.nv-nav-item:hover .nv-nav-dd-link:nth-child(n+6),
.nv-nav-item.is-open .nv-nav-dd-link:nth-child(n+6) { animation-delay: .17s; }
@keyframes nvNavDdIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .nv-nav-dd, .nv-nav-dd-link, .nv-nav-caret::before { transition: none; animation: none !important; }
}

.nv-header-tools { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.nv-nav { margin-left: 0; }
.nv-header-inner > .nv-nav { margin-left: auto; }

/* 语言切换 */
.nv-lang-switch { position: relative; }
.nv-lang-current {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 10px 0 10px;
  border: 1px solid var(--nv-border);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  color: var(--nv-text);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.nv-lang-current:hover {
  border-color: color-mix(in srgb, var(--nv-primary) 35%, var(--nv-border));
  box-shadow: 0 4px 14px rgba(15, 23, 42, .08);
}
.nv-lang-current:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--nv-primary) 45%, transparent);
  outline-offset: 2px;
}
.nv-lang-current[aria-expanded="true"],
.nv-lang-switch:hover .nv-lang-current,
.nv-lang-switch:focus-within .nv-lang-current {
  border-color: color-mix(in srgb, var(--nv-primary) 45%, var(--nv-border));
  box-shadow: 0 4px 16px rgba(15, 23, 42, .1);
}
.nv-lang-globe {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--nv-primary);
  flex: 0 0 auto;
}
.nv-lang-globe svg { display: block; }
.nv-lang-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--nv-primary) 12%, #fff);
  color: var(--nv-primary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1;
  text-transform: uppercase;
  border: 1px solid color-mix(in srgb, var(--nv-primary) 22%, transparent);
  flex: 0 0 auto;
}
.nv-lang-name {
  max-width: 7em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
  line-height: 1;
}
.nv-lang-caret {
  width: 6px;
  height: 6px;
  margin-left: 2px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  opacity: .55;
  transition: transform .2s ease, opacity .18s ease;
  flex: 0 0 auto;
}
.nv-lang-current[aria-expanded="true"] .nv-lang-caret,
.nv-lang-switch:hover .nv-lang-caret,
.nv-lang-switch:focus-within .nv-lang-caret {
  transform: rotate(225deg) translate(-1px, -1px);
  opacity: .85;
}
.nv-lang-list {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 168px;
  margin: 0;
  padding: 6px;
  list-style: none;
  background: #fff;
  border: 1px solid var(--nv-border);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, .14);
  display: none;
  z-index: 60;
  animation: nvLangPop .18s ease both;
}
.nv-lang-list::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -10px;
  height: 10px;
}
.nv-lang-switch:hover .nv-lang-list,
.nv-lang-switch:focus-within .nv-lang-list,
.nv-lang-list.is-open { display: block; }
@keyframes nvLangPop {
  from { opacity: 0; transform: translateY(6px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.nv-lang-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--nv-text-muted);
  text-decoration: none;
  transition: background .15s ease, color .15s ease;
}
.nv-lang-list a:hover {
  background: var(--nv-bg-alt);
  color: var(--nv-text);
}
.nv-lang-list a.is-active {
  color: var(--nv-primary);
  font-weight: 600;
  background: color-mix(in srgb, var(--nv-primary) 8%, #fff);
}
.nv-lang-opt-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 20px;
  padding: 0 5px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--nv-text-muted);
  background: var(--nv-bg-alt);
  border: 1px solid var(--nv-border);
}
.nv-lang-list a.is-active .nv-lang-opt-code {
  color: var(--nv-primary);
  background: color-mix(in srgb, var(--nv-primary) 12%, #fff);
  border-color: color-mix(in srgb, var(--nv-primary) 28%, transparent);
}
.nv-lang-opt-name { flex: 1; min-width: 0; line-height: 1.2; }

.nv-nav-toggle {
  display: none; position: relative;
  width: 40px; height: 36px; padding: 0;
  align-items: center; justify-content: center;
  background: none; border: 1px solid var(--nv-border);
  border-radius: 8px; cursor: pointer;
}
.nv-nav-toggle span {
  position: absolute; left: 50%; top: 50%;
  width: 18px; height: 2px; margin-left: -9px;
  background: var(--nv-text); display: block;
  border-radius: 1px;
  transition: transform .28s cubic-bezier(.22, 1, .36, 1), opacity .2s ease;
}
.nv-nav-toggle span:nth-child(1) { transform: translateY(-6px); }
.nv-nav-toggle span:nth-child(2) { transform: translateY(0); }
.nv-nav-toggle span:nth-child(3) { transform: translateY(6px); }
.nv-nav-toggle.is-open span:nth-child(1) { transform: translateY(0) rotate(45deg); }
.nv-nav-toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nv-nav-toggle.is-open span:nth-child(3) { transform: translateY(0) rotate(-45deg); }
@media (prefers-reduced-motion: reduce) {
  .nv-nav-toggle span { transition: none; }
}

/* ---------- Hero ---------- */
.nv-hero { display: none; }

/* ---------- Fitness Hero ---------- */
.fx-hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
  background: var(--fx-ink);
}
.fx-hero-media { position: absolute; inset: 0; }
.fx-hero-slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity var(--fx-hero-fade, 1s) ease;
  z-index: 0;
}
.fx-hero-slide.is-active { opacity: 1; z-index: 1; }
.fx-hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transform: scale(1.04);
  transition: transform 8s ease;
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
}
.fx-hero-slide.is-active img { transform: scale(1); }
.fx-hero-shade {
  position: absolute; inset: 0; z-index: 2; pointer-events: auto;
  background:
    linear-gradient(90deg, rgba(10,10,11,.88) 0%, rgba(10,10,11,.55) 48%, rgba(10,10,11,.25) 100%),
    linear-gradient(0deg, rgba(10,10,11,.75) 0%, transparent 45%);
}
.fx-hero-inner {
  position: relative; z-index: 3;
  padding: 120px 20px 72px;
  max-width: var(--nv-container);
}
.fx-hero-logo {
  margin: 0 0 18px;
  opacity: .7;
  animation: fxRiseSoft .7s ease both;
}
.fx-hero-logo img {
  display: block;
  height: 112px;
  width: auto;
  max-width: min(480px, 88vw);
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 6px 20px rgba(0,0,0,.4));
}
.fx-hero-eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #fff;
  background: var(--nv-accent);
  border-radius: 2px;
  opacity: .7;
  animation: fxRiseSoft .7s .06s ease both;
}
.fx-hero-title {
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.02;
  font-weight: 700;
  max-width: 16ch;
  margin-bottom: 18px;
  text-shadow: 0 8px 40px rgba(0,0,0,.45);
  opacity: .7;
  animation: fxRiseSoft .7s .12s ease both;
}
.fx-hero-tagline {
  font-size: clamp(16px, 2vw, 20px);
  max-width: 36em;
  margin-bottom: 28px;
  font-family: var(--fx-body);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  opacity: .7;
  animation: fxRiseSoft .7s .18s ease both;
}
.fx-hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap;
  opacity: .7;
  animation: fxRiseSoft .7s .2s ease both;
}
.fx-hero-actions .nv-btn.is-primary {
  background: var(--nv-accent);
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 14px 28px;
}
.fx-hero-actions .nv-btn.is-outline {
  border-width: 2px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: rgba(255,255,255,.92);
  border-color: rgba(255,255,255,.5);
}
.fx-hero-actions .nv-btn:hover { opacity: 1; }
.fx-btn-pulse { box-shadow: 0 0 0 0 rgba(255,61,0,.45); animation: fxPulse 2.4s 1s ease-out infinite; }
.fx-hero-dots {
  position: absolute; z-index: 4; left: 50%; bottom: 28px;
  transform: translateX(-50%);
  display: flex; gap: 10px;
}
.fx-hero-dot {
  width: 10px; height: 10px; border-radius: 50%;
  border: 0; padding: 0; cursor: pointer;
  background: rgba(255,255,255,.35);
  transition: background .2s ease, transform .2s ease;
}
.fx-hero-dot.is-active { background: var(--nv-accent); transform: scale(1.2); }
@keyframes fxRise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
/* 横幅文案半透明（约 70%） */
@keyframes fxRiseSoft {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: .7; transform: translateY(0); }
}
@keyframes fxPulse {
  0% { box-shadow: 0 0 0 0 rgba(255,61,0,.5); }
  70% { box-shadow: 0 0 0 16px rgba(255,61,0,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,61,0,0); }
}
@media (prefers-reduced-motion: reduce) {
  .fx-hero-slide, .fx-hero-slide img, .fx-btn-pulse, .fx-hero-logo, .fx-hero-eyebrow, .fx-hero-title, .fx-hero-tagline, .fx-hero-actions {
    transition: none !important; animation: none !important;
  }
  .fx-hero-logo,
  .fx-hero-eyebrow,
  .fx-hero-title,
  .fx-hero-tagline,
  .fx-hero-actions { opacity: .7; }
}

/* Scroll reveal：区块滚入视口后一块块切入 */
.fx-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .75s cubic-bezier(.22, 1, .36, 1), transform .75s cubic-bezier(.22, 1, .36, 1);
}
.fx-reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}
.fx-reveal [data-fx-stagger] > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s cubic-bezier(.22, 1, .36, 1), transform .55s cubic-bezier(.22, 1, .36, 1);
}
.fx-reveal.is-in [data-fx-stagger] > * { opacity: 1; transform: translateY(0); }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(1) { transition-delay: .04s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(2) { transition-delay: .1s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(3) { transition-delay: .16s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(4) { transition-delay: .22s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(5) { transition-delay: .28s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(6) { transition-delay: .34s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(7) { transition-delay: .4s; }
.fx-reveal.is-in [data-fx-stagger] > *:nth-child(n+8) { transition-delay: .46s; }
@media (prefers-reduced-motion: reduce) {
  .fx-reveal,
  .fx-reveal [data-fx-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

.fx-title { font-size: 28px; font-weight: 700; }
.fx-cat-card {
  border-radius: 4px;
  border: 1px solid var(--nv-border);
  background: #fff;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.fx-cat-card:hover {
  transform: translateY(-4px);
  border-color: var(--nv-accent);
  box-shadow: var(--nv-shadow-lg);
}
.fx-product-card {
  border-radius: 4px;
  overflow: hidden;
  transition: transform .22s ease, box-shadow .22s ease;
}
.fx-product-card:hover { transform: translateY(-6px); box-shadow: var(--nv-shadow-lg); }
.fx-product-card .nv-product-thumb img { transition: transform .45s ease; }
.fx-product-card:hover .nv-product-thumb img { transform: scale(1.06); }
.fx-cta {
  background: linear-gradient(120deg, #0a0a0b 0%, #1a120f 55%, #2a1208 100%);
  color: #fff;
}
.fx-cta .nv-cta-title { color: #fff; font-family: var(--fx-display); text-transform: uppercase; }
.fx-cta .nv-cta-desc { color: rgba(255,255,255,.75); }

/* ---------- Advantages / Process / About / News ---------- */
.nv-section-head.is-center { justify-content: center; text-align: center; }
.nv-section-head.is-center .nv-section-desc { margin-left: auto; margin-right: auto; }
.fx-adv-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 8px;
}
.fx-adv-card {
  position: relative;
  padding: 28px 22px 24px;
  background: #fff;
  border: 1px solid var(--nv-border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.fx-adv-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 61, 0, .45);
  box-shadow: var(--nv-shadow-lg);
}
.fx-adv-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  margin-bottom: 14px;
  border-radius: 4px;
  background: var(--fx-ink);
  color: #fff;
  font-family: var(--fx-display);
  font-weight: 700;
  font-size: 16px;
}
.fx-adv-title {
  font-size: 18px;
  margin-bottom: 8px;
  font-family: var(--fx-display);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.fx-adv-desc { color: var(--nv-text-muted); font-size: 14px; line-height: 1.65; margin: 0; }

.fx-stats {
  background: var(--fx-ink);
  color: #fff;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.fx-stats-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 36px 20px;
}
.fx-stat-item {
  text-align: center;
  padding: 8px 12px;
  border-right: 1px solid rgba(255,255,255,.1);
}
.fx-stat-item:last-child { border-right: 0; }
.fx-stat-value {
  display: block;
  font-family: var(--fx-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--nv-accent);
  line-height: 1.1;
  margin-bottom: 6px;
}
.fx-stat-label {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,.72);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.fx-scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.fx-scene-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--nv-border);
  border-radius: 4px;
  padding: 28px 24px 24px;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.fx-scene-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,61,0,.45);
  box-shadow: var(--nv-shadow-lg);
}
.fx-scene-idx {
  display: inline-block;
  font-family: var(--fx-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--nv-accent);
  margin-bottom: 12px;
}
.fx-scene-title {
  font-family: var(--fx-display);
  font-size: 22px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
  margin: 0 0 10px;
}
.fx-scene-desc {
  margin: 0 0 18px;
  color: var(--nv-text-muted);
  font-size: 14px;
  line-height: 1.65;
}
.fx-scene-link {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--nv-accent);
}

.fx-about-inner {
  display: grid;
  grid-template-columns: 1.4fr .9fr;
  gap: 36px;
  align-items: center;
}
.fx-about-eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--nv-accent);
}
.fx-about-text {
  color: var(--nv-text-muted);
  font-size: 16px;
  line-height: 1.75;
  margin: 12px 0 22px;
  max-width: 40em;
}
.fx-about-panel {
  display: grid;
  gap: 14px;
  padding: 28px;
  background: linear-gradient(145deg, #0a0a0b 0%, #1c120e 100%);
  border-radius: 6px;
  color: #fff;
}
.fx-about-stat {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.fx-about-stat:last-child { border-bottom: 0; padding-bottom: 0; }
.fx-about-stat strong {
  display: block;
  font-family: var(--fx-display);
  font-size: 28px;
  letter-spacing: .06em;
  color: var(--nv-accent);
  margin-bottom: 4px;
}
.fx-about-stat span { color: rgba(255,255,255,.7); font-size: 13px; }

.fx-step-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 8px 0 0;
  padding: 0;
  counter-reset: none;
}
.fx-step-card {
  position: relative;
  padding: 24px 20px;
  background: #fff;
  border: 1px solid var(--nv-border);
  border-radius: 4px;
}
.fx-step-card::after {
  content: '';
  position: absolute;
  top: 34px; right: -10px;
  width: 16px; height: 2px;
  background: color-mix(in srgb, var(--nv-accent) 55%, #fff);
}
.fx-step-card:last-child::after { display: none; }
.fx-step-idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--fx-display);
  font-size: 22px;
  color: var(--nv-accent);
  letter-spacing: .08em;
}
.fx-step-title {
  font-size: 17px;
  margin-bottom: 8px;
  font-family: var(--fx-display);
  text-transform: uppercase;
}
.fx-step-desc { margin: 0; color: var(--nv-text-muted); font-size: 14px; line-height: 1.6; }

.fx-news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.fx-news-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--nv-border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.fx-news-card:hover { transform: translateY(-4px); box-shadow: var(--nv-shadow-lg); }
.fx-news-cover {
  aspect-ratio: 16 / 10;
  background: #e2e8f0;
  overflow: hidden;
}
.fx-news-cover.is-empty { background: linear-gradient(135deg, #1a1a1c, #3a2018); }
.fx-news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.fx-news-card:hover .fx-news-cover img { transform: scale(1.05); }
.fx-news-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.fx-news-date { font-size: 12px; color: var(--nv-text-muted); letter-spacing: .04em; }
.fx-news-title {
  font-size: 17px;
  line-height: 1.35;
  font-family: var(--fx-display);
  text-transform: none;
  letter-spacing: 0;
}
.fx-news-summary {
  margin: 0;
  color: var(--nv-text-muted);
  font-size: 14px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.fx-news-more {
  margin-top: auto;
  padding-top: 8px;
  color: var(--nv-accent);
  font-size: 13px;
  font-weight: 600;
}

@media (max-width: 960px) {
  .fx-adv-grid,
  .fx-step-list,
  .fx-news-grid,
  .fx-scene-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nv-product-grid.is-cols-3,
  .nv-product-grid.is-cols-4,
  .fx-product-grid.is-cols-3,
  .fx-product-grid.is-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fx-stats-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .fx-stat-item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.08); padding-bottom: 16px; }
  .fx-step-card::after { display: none; }
  .fx-about-inner { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 640px) {
  .fx-adv-grid,
  .fx-step-list,
  .fx-news-grid,
  .fx-scene-grid,
  .fx-stats-inner { grid-template-columns: 1fr; }
}

.nv-footer { background: var(--fx-ink); color: rgba(255,255,255,.78); }
.nv-footer a:hover { color: var(--nv-accent); }

@media (max-width: 768px) {
  /* 手机端降低高度，减少宽幅横幅左右被裁 */
  .fx-hero {
    min-height: min(52vh, 440px);
    max-height: 480px;
    align-items: flex-end;
  }
  .fx-hero-inner { padding: 80px 20px 48px; }
  .fx-hero-slide img,
  .fx-hero-slide.is-active img {
    transform: none;
    object-fit: cover;
    object-position: center center;
  }
  .fx-hero-shade {
    background:
      linear-gradient(180deg, rgba(10,10,11,.35) 0%, rgba(10,10,11,.82) 72%, rgba(10,10,11,.92) 100%),
      linear-gradient(90deg, rgba(10,10,11,.55) 0%, rgba(10,10,11,.2) 55%, transparent 100%);
  }
  .fx-hero-logo img {
    height: 64px;
    max-width: min(300px, 74vw);
  }
  .fx-hero-tagline { max-width: 100%; font-size: 15px; margin-bottom: 20px; }
  .fx-hero-actions { width: 100%; }
  .fx-hero-actions .nv-btn { flex: 1 1 auto; justify-content: center; }
  .fx-hero-dots { bottom: 14px; }
}

/* ---------- 区块 ---------- */
.nv-section { padding: 64px 0; }
.nv-section.is-alt { background: var(--nv-bg-alt); }
.nv-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 28px; flex-wrap: wrap; }
.nv-section-title { font-size: 28px; margin-bottom: 6px; }
.nv-section-desc { color: var(--nv-text-muted); }
.nv-link-more { color: var(--nv-primary); font-size: 15px; }
.nv-link-more:hover { text-decoration: underline; }

/* 分类卡 */
.nv-cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.nv-cat-card {
  display: flex; align-items: center; justify-content: space-between; padding: 20px 22px;
  background: #fff; border: 1px solid var(--nv-border); border-radius: var(--nv-radius); transition: all .18s ease;
}
.nv-cat-card:hover { border-color: var(--nv-primary); box-shadow: var(--nv-shadow); transform: translateY(-2px); }
.nv-cat-name { font-weight: 500; }
.nv-cat-arrow { color: var(--nv-primary); }

/* ---------- 产品网格 ---------- */
.nv-product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.nv-product-grid.is-cols-3,
.fx-product-grid.is-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.nv-product-grid.is-cols-4,
.fx-product-grid.is-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.nv-product-card {
  background: #fff; border: 1px solid var(--nv-border); border-radius: var(--nv-radius);
  overflow: hidden; transition: all .2s ease; display: flex; flex-direction: column;
}
.nv-product-card:hover { transform: translateY(-3px); box-shadow: var(--nv-shadow-lg); border-color: #d1d5db; }
.nv-product-thumb { aspect-ratio: var(--nv-product-aspect, 4 / 3); background: var(--nv-bg-alt); overflow: hidden; position: relative; }
/* contain：完整显示原图；框比例由后台「产品图展示比例」统一控制 */
.nv-product-thumb img { display: block; width: 100%; height: 100%; object-fit: contain; object-position: center; }
.nv-product-aspect-auto .nv-product-thumb:not(.is-placeholder) {
  aspect-ratio: auto;
  height: auto;
}
.nv-product-aspect-auto .nv-product-thumb:not(.is-placeholder) img {
  height: auto;
}
.nv-product-thumb.is-placeholder { display: grid; place-items: center; background: linear-gradient(135deg, #eef2f7, #dfe7f1); }
.nv-thumb-initial { font-size: 46px; font-weight: 700; color: #94a3b8; text-transform: uppercase; }
.nv-product-price-tag {
  position: absolute;
  left: 10px;
  bottom: 10px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  max-width: calc(100% - 20px);
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .82);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}
.nv-product-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.nv-product-name { font-size: 17px; }
.nv-product-summary { color: var(--nv-text-muted); font-size: 14px; flex: 1; }
.nv-product-more { color: var(--nv-primary); font-size: 14px; font-weight: 500; }

/* ---------- 分页 ---------- */
.nv-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--nv-border);
}
.nv-pager-info {
  font-size: 13px;
  color: var(--nv-text-muted);
}
.nv-pager-info b { color: var(--nv-primary); font-weight: 600; }
.nv-pager-links { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nv-pager-item {
  display: grid;
  place-items: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--nv-border);
  border-radius: 8px;
  color: var(--nv-text);
  font-size: 14px;
  background: #fff;
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}
.nv-pager-item:hover {
  border-color: var(--nv-primary);
  color: var(--nv-primary);
}
.nv-pager-item.is-active {
  background: var(--nv-primary);
  border-color: var(--nv-primary);
  color: #fff;
  font-weight: 600;
}
.nv-pager-item.is-disabled {
  opacity: .4;
  cursor: not-allowed;
  pointer-events: none;
}
.nv-pager-item.is-gap {
  border: none;
  background: transparent;
  min-width: 20px;
  color: var(--nv-text-muted);
}

/* ---------- CTA ---------- */
.nv-cta-band { background: var(--nv-primary); color: #fff; padding: 46px 0; }
.nv-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.nv-cta-title { font-size: 24px; margin-bottom: 4px; }
.nv-cta-desc { opacity: .9; }
/* 首页底部「在线询价」：白底橙字，避免与橙底条同色看不清 */
.nv-cta-band .nv-cta-action,
.nv-cta-band a.nv-btn.is-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 140px;
  padding: 11px 22px !important;
  font-size: 15px !important;
  font-weight: 700 !important;
  letter-spacing: .02em;
  border-radius: 6px !important;
  background: #fff !important;
  color: var(--nv-accent, #ff3d00) !important;
  border: 2px solid #fff !important;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .28), 0 0 0 3px rgba(255, 255, 255, .1);
}
.nv-cta-band .nv-cta-action:hover,
.nv-cta-band a.nv-btn.is-primary:hover {
  background: #fff7f4 !important;
  color: var(--nv-accent-dark, #e03600) !important;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .32), 0 0 0 3px rgba(255, 255, 255, .14);
}
/* 顶栏「在线询价」 */
.nv-header-cta.nv-btn.is-primary {
  min-height: 38px;
  padding: 8px 16px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 12px rgba(255, 61, 0, .35);
}

/* ---------- 内页 ---------- */
.nv-page-head { background: var(--nv-bg-alt); border-bottom: 1px solid var(--nv-border); padding: 40px 0; }
.nv-page-title { font-size: 30px; }
.nv-page-meta { color: var(--nv-text-muted); margin-top: 6px; }
.nv-page-body { padding: 40px 0 64px; }

.nv-filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.nv-filter-chip {
  padding: 8px 18px; border: 1px solid var(--nv-border); border-radius: 999px;
  font-size: 14px; color: var(--nv-text-muted); background: #fff; transition: all .18s ease;
}
.nv-filter-chip:hover { border-color: var(--nv-primary); color: var(--nv-primary); }
.nv-filter-chip.is-active { background: var(--nv-primary); border-color: var(--nv-primary); color: #fff; }

/* 面包屑 */
.nv-breadcrumb { display: flex; gap: 8px; flex-wrap: wrap; font-size: 14px; color: var(--nv-text-muted); margin-bottom: 24px; }
.nv-breadcrumb a:hover { color: var(--nv-primary); }
.nv-breadcrumb .nv-sep { opacity: .5; }
.nv-breadcrumb .nv-current { color: var(--nv-text); }

/* ---------- 产品详情 ---------- */
.nv-detail { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 36px; margin-bottom: 44px; align-items: start; }
.nv-detail-media { align-self: start; width: 100%; }
.nv-detail-thumb { aspect-ratio: var(--nv-product-stage-aspect, var(--nv-product-aspect, 4 / 3)); border-radius: var(--nv-radius); overflow: hidden;
  background: linear-gradient(135deg, #eef2f7, #dfe7f1); display: grid; place-items: center; width: 100%; }
.nv-gallery { display: flex; flex-direction: column; gap: 12px; }
.nv-gallery > img { border-radius: var(--nv-radius); width: 100%; }
.nv-surface-detail .nv-gallery:not(.is-carousel) {
  /* content-box + padding-bottom：全局 border-box 下 height:0 会塌缩 */
  position: relative; width: 100%; box-sizing: content-box; height: 0;
  padding-bottom: var(--nv-product-stage-pad, 100%);
  border-radius: var(--nv-radius); overflow: hidden; background: var(--nv-bg-alt);
}
.nv-surface-detail .nv-gallery:not(.is-carousel) > img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  max-width: 100%; max-height: 100%;
  object-fit: contain; object-position: center; border-radius: 0;
}

/* 多图轮播（自动切换 + 缩略图手动切换） */
.nv-gallery.is-carousel { gap: 10px; }
.nv-gallery-stage {
  position: relative; width: 100%; box-sizing: content-box; height: 0;
  padding-bottom: var(--nv-product-stage-pad, 100%);
  border-radius: var(--nv-radius); overflow: hidden; background: var(--nv-bg-alt);
}
.nv-gallery-slide {
  position: absolute; inset: 0; width: 100%; height: 100%;
  max-width: 100%; max-height: 100%;
  object-fit: contain; opacity: 0; transform: scale(.985);
  pointer-events: none; /* 透明非激活图不拦截点击，避免盖住当前可点的主图 */
  transition: opacity .5s ease, transform .5s ease; will-change: opacity;
}
.nv-gallery-slide.is-active { opacity: 1; transform: none; pointer-events: auto; }
.nv-gallery-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 38px; height: 38px; padding: 0; border: 0; border-radius: 50%; cursor: pointer;
  background: rgba(255, 255, 255, .92); color: var(--nv-text);
  font-size: 26px; line-height: 1; display: grid; place-items: center;
  box-shadow: var(--nv-shadow); opacity: 0; transition: opacity .2s ease, color .2s ease;
}
.nv-gallery-stage:hover .nv-gallery-arrow,
.nv-gallery-arrow:focus-visible { opacity: 1; }
.nv-gallery-arrow:hover { color: var(--nv-accent); }
.nv-gallery-arrow.is-prev { left: 12px; }
.nv-gallery-arrow.is-next { right: 12px; }
.nv-gallery-thumbs { display: flex; flex-wrap: wrap; gap: 8px; }
.nv-gallery-thumb {
  width: 66px; aspect-ratio: var(--nv-product-stage-aspect, var(--nv-product-aspect, 4 / 3)); padding: 0; border: 2px solid transparent;
  border-radius: 8px; overflow: hidden; cursor: pointer; background: var(--nv-bg-alt);
  transition: border-color .18s ease;
}
.nv-gallery-thumb img { display: block; width: 100%; height: 100%; object-fit: contain; }
.nv-gallery-thumb:hover { border-color: var(--nv-primary); }
.nv-gallery-thumb.is-active { border-color: var(--nv-accent); }
.nv-detail-title { font-size: 30px; margin-bottom: 12px; }
.nv-detail-summary { color: var(--nv-text-muted); font-size: 17px; margin-bottom: 16px; }
.nv-detail-price {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 12px;
  margin: 0 0 20px; color: var(--nv-accent);
}
.nv-detail-price-label { font-size: 13px; font-weight: 500; color: var(--nv-text-muted); }
.nv-detail-price-amount { font-size: 26px; font-weight: 600; letter-spacing: .02em; font-variant-numeric: tabular-nums; }
.nv-detail-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.nv-detail-actions .nv-inquiry-btn,
.nv-detail-actions .nv-btn.is-primary {
  width: auto;
  min-height: 0;
  padding: 11px 22px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: normal;
  border-radius: var(--nv-radius);
  background: var(--nv-accent);
  color: #fff;
  box-shadow: none;
  animation: none;
}
.nv-detail-actions .nv-inquiry-btn:hover,
.nv-detail-actions .nv-btn.is-primary:hover {
  background: var(--nv-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: none;
}

/* 产品页底部询价 CTA（product_cta 插件） */
.product-cta {
  margin: 0 !important;
  border-radius: 0 !important;
  padding: 40px clamp(20px, 5vw, 64px) !important;
  background: linear-gradient(120deg, #0a0a0b 0%, #1a120f 50%, #3a1408 100%) !important;
  border: none !important;
  border-top: 1px solid rgba(255, 61, 0, .35) !important;
  border-bottom: 1px solid rgba(255, 61, 0, .2) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04) !important;
  gap: 24px !important;
}
.product-cta-title {
  font-family: var(--fx-display) !important;
  font-size: clamp(1.5rem, 2.4vw, 2rem) !important;
  text-transform: uppercase;
  letter-spacing: .02em;
}
.product-cta-sub { font-size: 1.05rem !important; max-width: 42em; }
.product-cta-btn {
  min-height: 56px !important;
  min-width: 200px;
  padding: 16px 36px !important;
  font-size: 1.15rem !important;
  font-weight: 800 !important;
  border-radius: 6px !important;
  background: var(--nv-accent) !important;
  color: #fff !important;
  box-shadow: none !important;
  animation: none !important;
  filter: none !important;
}
.product-cta-btn:hover,
.product-cta-btn:focus-visible {
  background: var(--nv-accent-dark) !important;
  color: #fff !important;
  animation: none !important;
  transform: translateY(-1px);
  box-shadow: none !important;
  filter: none !important;
}
@media (prefers-reduced-motion: reduce) {
  .product-cta-btn { animation: none; }
}

.nv-block { margin-bottom: 40px; }
.nv-block-title { font-size: 20px; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid var(--nv-border); }

.nv-spec-table { width: 100%; border-collapse: collapse; }
.nv-spec-table th, .nv-spec-table td { padding: 12px 16px; border-bottom: 1px solid var(--nv-border); text-align: left; font-size: 15px; }
.nv-spec-table th { width: 40%; font-weight: 500; color: var(--nv-text-muted); background: var(--nv-bg-alt); }
.nv-spec-table tr:last-child th, .nv-spec-table tr:last-child td { border-bottom: none; }
.nv-custom-fields { margin-top: 8px; }
.nv-custom-fields .nv-spec-table { border: 1px solid var(--nv-border); border-radius: var(--nv-radius); overflow: hidden; position: relative; }
.nv-custom-fields .nv-spec-table th:first-child { border-radius: 0; }
.nv-post-detail .nv-custom-fields { margin-top: 28px; }

.nv-rich-text p { margin-bottom: 14px; }
.nv-rich-text p:last-child { margin-bottom: 0; }
.nv-text-muted { color: var(--nv-text-muted); }

/* ---------- 关于 ---------- */
.nv-about-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; align-items: start; }
.nv-side-card { background: var(--nv-bg-alt); border-radius: var(--nv-radius); padding: 24px; position: sticky; top: 88px; }
.nv-side-card h3 { font-size: 17px; margin-bottom: 16px; }
.nv-contact-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 8px; }
.nv-contact-list > div { display: flex; flex-direction: column; gap: 2px; }
.nv-contact-list dt { font-size: 13px; color: var(--nv-text-muted); }
.nv-contact-list dd { font-size: 15px; margin: 0; }

/* ---------- 联系 ---------- */
.nv-contact-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; align-items: start; }
.nv-form { display: flex; flex-direction: column; gap: 18px; max-width: 720px; }
.nv-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.nv-field { display: flex; flex-direction: column; gap: 7px; }
.nv-field-label { font-size: 14px; font-weight: 500; }
.nv-field-label b { color: var(--nv-accent); }
.nv-input, .nv-textarea, .nv-select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--nv-border); border-radius: var(--nv-radius);
  font-size: 15px; font-family: inherit; color: var(--nv-text); background: #fff; transition: border-color .18s ease;
}
.nv-input:focus, .nv-textarea:focus, .nv-select:focus { outline: none; border-color: var(--nv-primary); }
.nv-input.is-error, .nv-textarea.is-error { border-color: #dc2626; }
.nv-textarea { resize: vertical; min-height: 110px; }
.nv-field-error { font-size: 13px; color: #dc2626; }
.nv-field-hint { font-size: 13px; color: var(--nv-text-muted); }
.nv-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.nv-alert { padding: 13px 16px; border-radius: var(--nv-radius); font-size: 15px; margin-bottom: 18px; }
.nv-alert.is-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.nv-alert.is-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* ---------- 提示态 ---------- */
.nv-empty-state { text-align: center; padding: 60px 20px; color: var(--nv-text-muted); display: flex;
  flex-direction: column; align-items: center; gap: 18px; }

.nv-license-error { max-width: 560px; margin: 60px auto; text-align: center; padding: 48px 32px;
  border: 1px solid var(--nv-border); border-radius: var(--nv-radius); }
.nv-license-icon { width: 60px; height: 60px; margin: 0 auto 20px; position: relative; }
.nv-lock-body { position: absolute; bottom: 0; left: 8px; width: 44px; height: 34px;
  background: var(--nv-accent); border-radius: 6px; }
.nv-lock-shackle { position: absolute; top: 0; left: 19px; width: 22px; height: 24px;
  border: 5px solid var(--nv-accent); border-bottom: none; border-radius: 11px 11px 0 0; }
.nv-license-title { font-size: 24px; margin-bottom: 10px; }
.nv-license-message { color: var(--nv-text-muted); margin-bottom: 8px; }
.nv-license-hint { font-size: 14px; color: var(--nv-text-muted); }

.nv-maint-gear {
  display: block; width: 48px; height: 48px; margin: 6px auto 0;
  border: 5px solid var(--nv-accent); border-radius: 50%;
  box-shadow: inset 0 0 0 8px var(--nv-bg, #fff);
  position: relative;
}
.nv-maint-gear::before, .nv-maint-gear::after {
  content: ''; position: absolute; left: 50%; top: 50%;
  width: 10px; height: 58px; margin: -29px -5px; background: var(--nv-accent); border-radius: 2px;
}
.nv-maint-gear::after { transform: rotate(90deg); }
.nv-maint-message { white-space: normal; line-height: 1.6; text-align: left; max-width: 420px; margin: 0 auto 12px; }

/* ---------- 页脚 ---------- */
.nv-footer { background: #111827; color: #d1d5db; padding: 52px 0 0; margin-top: 20px; }
.nv-footer-grid {
  display: grid;
  grid-template-columns: minmax(180px, 1.35fr) repeat(4, minmax(120px, 1fr));
  gap: 32px 28px;
  padding-bottom: 28px;
}
.nv-footer-brand { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 10px; }
.nv-footer-logo {
  display: inline-block; margin: 0 0 12px;
  align-self: flex-start; width: fit-content; max-width: 100%;
  line-height: 0;
}
.nv-footer-logo img {
  display: block; height: 56px; width: auto; max-width: 200px;
  object-fit: contain; object-position: left center;
}
.nv-footer-tagline { font-size: 14px; max-width: 380px; margin: 0 0 14px; line-height: 1.55; }
.nv-footer-social {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px;
  flex: 0 1 auto; margin: 0 0 0 auto;
}
.nv-footer-social-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; color: #9ca3af; text-decoration: none;
  letter-spacing: .02em;
}
.nv-footer-social-link:hover { color: #fff; }
.nv-footer-social-icon {
  display: inline-flex; width: 28px; height: 28px; flex: 0 0 auto;
}
.nv-footer-social-icon svg { display: block; width: 100%; height: 100%; }
.nv-footer-col { display: flex; flex-direction: column; gap: 9px; align-items: flex-start; }
.nv-footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 5px; }
.nv-footer-col > a {
  display: inline-block; width: fit-content; max-width: 100%;
  font-size: 14px; line-height: 1.4; color: #d1d5db;
}
.nv-footer-col a, .nv-footer-col span { font-size: 14px; }
.nv-footer-col a:hover { color: #fff; }
.nv-footer-col-more {
  margin-top: 4px;
  color: #9ca3af !important;
  font-size: 13px !important;
}
.nv-footer-col-more:hover { color: #fff !important; }
.nv-footer-inquiry {
  display: inline-flex !important;
  align-items: center;
  margin-top: 10px;
  padding: 10px 16px !important;
  border-radius: 6px;
  background: var(--nv-accent, #ff3d00);
  color: #fff !important;
  font-size: 14px !important;
  font-weight: 600;
  line-height: 1.2;
  width: fit-content;
}
.nv-footer-inquiry:hover {
  background: var(--nv-accent-dark, #e03600);
  color: #fff !important;
  transform: translateY(-1px);
}
.nv-footer-contact-row {
  display: flex; flex-direction: column; gap: 2px;
  align-self: flex-start; width: fit-content; max-width: 100%;
}
.nv-footer-contact-label {
  font-size: 12px; color: #9ca3af; letter-spacing: .02em;
}
.nv-footer-contact-row a {
  display: inline-block; width: fit-content; max-width: 100%;
}
.nv-footer-contact-row a,
.nv-footer-contact-row > span:not(.nv-footer-contact-label) {
  font-size: 14px; color: #d1d5db; word-break: break-word;
}
.nv-footer-contact-row a:hover { color: #fff; }
.nv-footer-showcase {
  padding: 22px 20px 26px;
  border-top: 1px solid #1f2937;
}
.nv-footer-showcase-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin-bottom: 14px;
}
.nv-footer-showcase-head h4 {
  margin: 0; color: #fff; font-size: 15px; font-weight: 600;
}
.nv-footer-showcase-more {
  font-size: 13px; color: #9ca3af; white-space: nowrap;
}
.nv-footer-showcase-more:hover { color: #fff; }
.nv-footer-thumbs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}
.nv-footer-thumb {
  display: flex; flex-direction: column;
  overflow: hidden; border-radius: 8px;
  background: #0b1220;
  border: 1px solid rgba(255,255,255,.06);
  text-decoration: none; color: #d1d5db;
  transition: border-color .18s ease, transform .18s ease;
}
.nv-footer-thumb-media {
  display: block; aspect-ratio: 4 / 3; overflow: hidden;
  background: #0b1220;
}
.nv-footer-thumb-media img,
.nv-footer-thumb img {
  display: block; width: 100%; height: 100%; object-fit: cover;
}
.nv-footer-thumb-title {
  display: block; padding: 8px 10px 10px;
  font-size: 12px; line-height: 1.35; color: #d1d5db;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.nv-footer-thumb:hover {
  border-color: rgba(255, 61, 0, .55);
  transform: translateY(-2px);
  color: #fff;
}
.nv-footer-thumb:hover .nv-footer-thumb-title { color: #fff; }
.nv-footer-bottom {
  border-top: 1px solid #1f2937; padding: 18px 0 22px; font-size: 13px; color: #9ca3af;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-start; gap: 14px 20px;
}
.nv-footer-bottom-main {
  display: contents;
}
.nv-footer-copy { flex: 0 1 auto; margin: 0; max-width: 100%; }
.nv-footer-wa {
  display: flex; align-items: center; gap: 14px; flex: 0 0 auto;
  margin-left: 0; justify-content: flex-start;
}
.nv-footer-wa-qr {
  display: block; width: 112px; height: 112px; padding: 6px; border-radius: 10px;
  background: #fff; box-shadow: 0 0 0 1px rgba(255,255,255,.08);
}
.nv-footer-wa-qr img {
  display: block; width: 100%; height: 100%; object-fit: contain;
}
.nv-footer-wa-meta { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.nv-footer-wa-meta strong { color: #fff; font-size: 14px; font-weight: 600; }
.nv-footer-wa-meta span { font-size: 12px; color: #9ca3af; line-height: 1.4; }

/* ---------- 安装向导 ---------- */
body.nv-install { background: var(--nv-bg-alt); }
.nv-install-wrap { max-width: 640px; margin: 0 auto; padding: 48px 20px 64px; }
.nv-install-head { text-align: center; margin-bottom: 28px; }
.nv-install-logo { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 12px;
  background: var(--nv-primary); color: #fff; font-weight: 700; font-size: 20px; margin-bottom: 14px; }
.nv-install-head h1 { font-size: 26px; margin-bottom: 6px; }
.nv-install-sub { color: var(--nv-text-muted); }

.nv-card { background: #fff; border: 1px solid var(--nv-border); border-radius: var(--nv-radius);
  padding: 24px; margin-bottom: 18px; box-shadow: var(--nv-shadow); }
.nv-install-step { font-size: 16px; margin-bottom: 16px; }

.nv-check-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.nv-check-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.nv-check-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.is-ok .nv-check-dot { background: #16a34a; }
.is-bad .nv-check-dot { background: #dc2626; }
.is-warn .nv-check-dot { background: #f59e0b; }
.nv-check-label { flex: 1; }
.nv-check-detail { color: var(--nv-text-muted); font-size: 13px; }

.nv-install-form, .nv-form { margin-top: 4px; }
.nv-install-block { border-color: #fecaca; background: #fef2f2; }
.nv-install-block h2 { color: #991b1b; font-size: 16px; margin-bottom: 6px; }
.nv-install-block p { color: #991b1b; font-size: 14px; }

.nv-install-done { text-align: center; }
.nv-install-ok { font-size: 20px; font-weight: 600; color: #16a34a; margin-bottom: 10px; }
.nv-install-done p { color: var(--nv-text-muted); margin-bottom: 20px; }
.nv-install-meta { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; text-align: left;
  background: var(--nv-bg-alt); border-radius: 8px; padding: 14px 16px; }
.nv-install-meta > div { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; }
.nv-install-meta dt { color: var(--nv-text-muted); }
.nv-install-meta dd { margin: 0; word-break: break-all; }

/* ---------- 文章列表 ---------- */
.nv-post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.nv-post-card {
  background: #fff; border: 1px solid var(--nv-border); border-radius: var(--nv-radius);
  overflow: hidden; transition: all .2s ease; display: flex; flex-direction: column;
}
.nv-post-card:hover { transform: translateY(-3px); box-shadow: var(--nv-shadow-lg); border-color: #d1d5db; }
.nv-post-thumb { aspect-ratio: var(--nv-cover-aspect, 16 / 9); background: var(--nv-bg-alt); overflow: hidden; }
.nv-post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.nv-post-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.nv-post-date { font-size: 13px; color: var(--nv-text-muted); }
.nv-post-title { font-size: 18px; line-height: 1.4; }
.nv-post-title a:hover { color: var(--nv-primary); }
.nv-post-summary { color: var(--nv-text-muted); font-size: 14px; flex: 1; }
.nv-post-more { color: var(--nv-primary); font-size: 14px; font-weight: 500; }

/* 文章详情 */
.nv-post-detail {
  padding-bottom: 48px;
  background:
    linear-gradient(180deg, var(--nv-bg-alt) 0, var(--nv-bg-alt) 220px, var(--nv-bg) 220px);
}
.nv-post-detail .nv-page-body { padding-top: 28px; }
.nv-post-shell {
  max-width: 820px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--nv-border);
  border-radius: calc(var(--nv-radius) + 4px);
  box-shadow: var(--nv-shadow);
  padding: 36px 40px 32px;
  animation: nv-post-in .45s ease both;
}
@keyframes nv-post-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.nv-post-header { margin-bottom: 22px; }
.nv-post-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  margin-bottom: 12px;
}
.nv-post-date { font-size: 13px; color: var(--nv-text-muted); letter-spacing: .02em; }
.nv-post-cat {
  display: inline-flex; align-items: center;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(11, 94, 215, .08); color: var(--nv-primary);
  font-size: 12px; font-weight: 600;
}
.nv-post-heading {
  font-size: clamp(26px, 3.2vw, 34px);
  line-height: 1.28; letter-spacing: -.02em; color: var(--nv-text);
}
.nv-post-lead {
  color: var(--nv-text-muted); font-size: 17px; line-height: 1.7;
  margin-top: 14px; max-width: 42em;
}
.nv-post-cover-wrap {
  margin: 0 0 28px; border-radius: var(--nv-radius); overflow: hidden;
  background: var(--nv-bg-alt); box-shadow: var(--nv-shadow);
}
.nv-post-cover {
  width: 100%; aspect-ratio: var(--nv-cover-aspect, 16 / 9); object-fit: cover;
  margin: 0; border-radius: 0;
  transition: transform .55s ease;
}
.nv-post-cover-wrap:hover .nv-post-cover { transform: scale(1.02); }
.nv-post-content, .nv-rich {
  font-size: 16.5px; line-height: 1.9; color: var(--nv-text);
  max-width: none;
}
.nv-post-content p, .nv-rich p { margin-bottom: 1.05em; }
.nv-post-content h2, .nv-rich h2,
.nv-post-content h3, .nv-rich h3 { margin: 1.6em 0 .55em; line-height: 1.35; }
.nv-post-content ul, .nv-rich ul,
.nv-post-content ol, .nv-rich ol { margin: 0 0 1.05em 1.25em; }
.nv-post-content li + li, .nv-rich li + li { margin-top: .35em; }
.nv-post-content img, .nv-rich img {
  max-width: 100%; border-radius: var(--nv-radius); margin: 1em 0;
  box-shadow: var(--nv-shadow);
}
.nv-post-content a, .nv-rich a { color: var(--nv-primary); text-decoration: underline; text-underline-offset: 2px; }
.nv-post-content blockquote, .nv-rich blockquote {
  margin: 1.2em 0; padding: 12px 18px;
  border-left: 3px solid var(--nv-primary);
  background: var(--nv-bg-alt); color: var(--nv-text-muted); border-radius: 0 var(--nv-radius) var(--nv-radius) 0;
}
.nv-post-footer {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  justify-content: space-between;
  margin-top: 36px; padding-top: 22px;
  border-top: 1px solid var(--nv-border);
}
.nv-post-related { margin-top: 48px; }
.nv-post-related-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin-bottom: 18px;
}
.nv-post-related-title { font-size: 22px; }
.nv-post-related-more { font-size: 14px; color: var(--nv-primary); font-weight: 500; }
.nv-post-related-more:hover { text-decoration: underline; }

/* 栅格子项安全：避免长内容撑破列宽 */
.nv-detail-media, .nv-detail-main,
.nv-about-text, .nv-about-side,
.nv-contact-form-wrap, .nv-contact-side { min-width: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .nv-detail { grid-template-columns: 1fr; gap: 24px; }
  .nv-about-layout, .nv-contact-layout { grid-template-columns: 1fr; }
  .nv-side-card { position: static; }
  .nv-footer-grid { grid-template-columns: 1fr 1fr; }
  .nv-gallery-arrow { opacity: 1; width: 34px; height: 34px; font-size: 22px; }
  .nv-gallery-arrow.is-prev { left: 8px; }
  .nv-gallery-arrow.is-next { right: 8px; }
}

@media (max-width: 720px) {
  .nv-nav {
    display: flex; position: absolute; top: 80px; left: 0; right: 0; background: #fff;
    flex-direction: column; gap: 0; padding: 0 20px;
    border-bottom: 1px solid transparent;
    box-shadow: none; align-items: stretch;
    max-height: 0; overflow: hidden; opacity: 0; visibility: hidden;
    pointer-events: none;
    transition: max-height .36s cubic-bezier(.22, 1, .36, 1), opacity .28s ease,
      padding .28s ease, border-color .28s ease, box-shadow .28s ease, visibility .28s;
  }
  .nv-nav.is-open {
    display: flex; max-height: min(80vh, 640px); opacity: 1; visibility: visible;
    pointer-events: auto; padding: 8px 20px 16px;
    border-bottom-color: var(--nv-border);
    box-shadow: var(--nv-shadow-lg);
    overflow-y: auto;
  }
  @media (prefers-reduced-motion: reduce) {
    .nv-nav { transition: none; }
  }
  /* 白底抽屉：覆盖顶栏浅色链接，避免白底白字 */
  .nv-header .nv-nav .nv-nav-link { color: var(--nv-text); }
  .nv-header .nv-nav .nv-nav-link:hover,
  .nv-header .nv-nav .nv-nav-link.is-active { color: var(--nv-primary); }
  .nv-header .nv-nav .nv-nav-caret::before { border-color: var(--nv-text-muted); }
  .nv-header .nv-nav .nv-nav-item.is-open .nv-nav-caret::before,
  .nv-header .nv-nav .nv-nav-item:hover .nv-nav-caret::before { border-color: var(--nv-primary); }
  .nv-header .nv-nav .nv-nav-dd-link { color: var(--nv-text); }
  .nv-nav-item { flex-direction: column; align-items: stretch; }
  .nv-nav-link-row {
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid var(--nv-border);
  }
  /* 手机导航只用灰分隔线，去掉桌面 active 橙色下划线，避免「产品中心」下多一条杠 */
  .nv-nav-link,
  .nv-nav-link:hover,
  .nv-nav-link.is-active {
    padding: 12px 0; flex: 1;
    border-bottom: 1px solid var(--nv-border);
  }
  .nv-nav-link-row .nv-nav-link,
  .nv-nav-link-row .nv-nav-link:hover,
  .nv-nav-link-row .nv-nav-link.is-active {
    border-bottom: none;
  }
  .nv-nav-link.is-active { color: var(--nv-primary); }
  .nv-nav-caret { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; }
  .nv-nav-dd {
    position: static; left: auto; top: auto; transform: none !important; min-width: 0;
    border: 0; box-shadow: none; border-radius: 0; padding: 0;
    background: transparent; max-height: 0; overflow: hidden;
    opacity: 0; visibility: hidden;
    pointer-events: none; transition: max-height .28s ease;
  }
  .nv-nav-dd::before { display: none; }
  /* 关闭态彻底藏住下拉，防止 active 分类项粉条漏出 */
  .nv-nav-item:hover .nv-nav-dd,
  .nv-nav-item:focus-within .nv-nav-dd {
    max-height: 0; padding: 0; opacity: 0; visibility: hidden;
    pointer-events: none; transform: none !important;
  }
  .nv-nav-item.is-open .nv-nav-dd {
    max-height: 480px; padding: 0 0 8px 12px;
    pointer-events: auto; transform: none !important;
    opacity: 1; visibility: visible;
  }
  .nv-nav-dd-link { white-space: normal; padding: 10px 4px; }
  .nv-nav-item:hover .nv-nav-dd-link,
  .nv-nav-item.is-open .nv-nav-dd-link { animation: none; }
  .nv-nav-toggle { display: flex; }
  .nv-header-cta { display: none; }
  .nv-hero { padding: 56px 0 48px; }
  .nv-hero-title { font-size: 30px; }
  .nv-hero-tagline { font-size: 16px; }
  .nv-field-row { grid-template-columns: 1fr; }
  .nv-section { padding: 44px 0; }
  .nv-footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .nv-footer-brand-col { grid-column: 1 / -1; }
  .nv-footer-thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .nv-footer-bottom {
    flex-direction: column;
    align-items: stretch;
    padding-top: 20px;
    padding-bottom: max(72px, calc(48px + env(safe-area-inset-bottom, 0px)));
    gap: 14px;
  }
  .nv-footer-social {
    margin-left: 0;
    justify-content: flex-start;
  }
  .nv-footer-wa {
    margin-left: 0;
    padding-bottom: 8px;
    align-self: flex-start;
  }
  .nv-detail-title { font-size: 24px; }
  .nv-spec-table th { width: 45%; }
}

/* 手机竖屏（≤600）：明确覆盖该档断点，保证小屏不破版 */
@media (max-width: 600px) {
  .nv-container { padding: 0 20px; }
  /* 询盘表单：标题与字段远离屏幕边缘（含底部浮动客服占位） */
  .nv-page-head > .nv-container {
    padding-left: 24px;
    padding-right: 24px;
  }
  .nv-container.nv-contact-layout {
    padding: 28px 24px 52px;
    padding-right: max(24px, calc(16px + env(safe-area-inset-right, 0px)));
  }
  .nv-contact-form-wrap .nv-block-title {
    margin-bottom: 18px;
    padding-right: 8px;
  }
  .nv-form {
    gap: 20px;
    max-width: 100%;
  }
  .nv-field { gap: 8px; }
  .nv-field-label { font-size: 14px; line-height: 1.4; }
  .nv-input, .nv-textarea, .nv-select {
    padding: 12px 14px;
    font-size: 16px; /* 避免 iOS 聚焦自动放大 */
  }
  .nv-side-card { margin-top: 8px; }
  .nv-header-inner { height: 68px; gap: 12px; }
  .nv-nav { top: 68px; }
  .nv-logo-text { max-width: 140px; }
  .fx-hero {
    min-height: min(46vh, 380px);
    max-height: 420px;
  }
  .fx-hero-inner { padding: 64px 16px 36px; }
  .fx-hero-logo { margin-bottom: 12px; }
  .fx-hero-logo img { height: 56px; max-width: min(260px, 70vw); }
  .fx-hero-eyebrow { margin-bottom: 10px; font-size: 11px; }
  .fx-hero-tagline { font-size: 14px; margin-bottom: 16px; line-height: 1.5; }
  .nv-hero { padding: 44px 0 40px; }
  .nv-hero-title { font-size: 26px; }
  .nv-hero-tagline { font-size: 15px; }
  .nv-hero-actions { width: 100%; }
  .nv-hero-actions .nv-btn { flex: 1; }
  .nv-section { padding: 36px 0; }
  .nv-section-title { font-size: 24px; }
  .nv-page-head { padding: 28px 0; }
  .nv-page-title { font-size: 24px; }
  .nv-page-body { padding: 28px 0 44px; }
  .nv-detail-title { font-size: 22px; }
  .nv-post-title { font-size: 17px; }
  .nv-gallery-thumb { width: 52px; }
  .nv-post-content, .nv-rich { font-size: 15px; }
  .nv-post-shell { padding: 22px 18px 20px; }
  .nv-post-heading { font-size: 24px; }
  .nv-post-lead { font-size: 15px; }
  .nv-post-related { margin-top: 32px; }
  .nv-product-grid,
  .nv-product-grid.is-cols-3,
  .nv-product-grid.is-cols-4,
  .fx-product-grid.is-cols-3,
  .fx-product-grid.is-cols-4,
  .nv-post-grid,
  .nv-cat-grid { grid-template-columns: 1fr; }
  .nv-cta-inner { flex-direction: column; align-items: flex-start; }
  .nv-cta-band .nv-btn { width: 100%; }
  .nv-side-card { padding: 18px; }
  .nv-footer { padding-top: 40px; }
  .nv-footer-bottom {
    padding-bottom: max(88px, calc(64px + env(safe-area-inset-bottom, 0px)));
  }
}

/* ---------- 图片点击放大（lightbox） ---------- */
/* 放大提示：详情大图（单图直出 + 轮播主图）hover 出放大镜徽标 */
.nv-detail-media .nv-gallery { position: relative; }
.nv-detail-media .nv-gallery > img,
.nv-detail-media .nv-gallery-stage .nv-gallery-slide { cursor: zoom-in; }
.nv-detail-media .nv-gallery-stage::after,
.nv-detail-media .nv-gallery:not(.is-carousel)::after {
  content: ""; position: absolute; right: 10px; bottom: 10px; z-index: 2;
  width: 34px; height: 34px; border-radius: 50%;
  background-color: rgba(255, 255, 255, .94);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23334155' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
  background-size: 18px 18px; background-position: center; background-repeat: no-repeat;
  box-shadow: 0 2px 10px rgba(15, 23, 42, .18);
  opacity: 0; transition: opacity .2s ease;
  pointer-events: none;
}
.nv-detail-media .nv-gallery-stage:hover::after,
.nv-detail-media .nv-gallery-stage:focus-within::after,
.nv-detail-media .nv-gallery:not(.is-carousel):hover::after { opacity: 1; }

/* 全屏预览层 */
.nv-lightbox {
  position: fixed; inset: 0; z-index: 1200;
  display: flex; align-items: center; justify-content: center;
  background: #06080c;
  padding: 60px 84px 44px;
  opacity: 0; visibility: hidden;
  transition: opacity .22s ease, visibility .22s ease;
}
.nv-lightbox[hidden] { display: none; }
.nv-lightbox.is-open { opacity: 1; visibility: visible; }
.nv-lightbox-figure {
  margin: 0; min-width: 0; max-width: 100%; max-height: 100%;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.nv-lightbox-figure img {
  max-width: 100%; max-height: calc(100vh - 140px);
  object-fit: contain; border-radius: 6px;
  box-shadow: 0 12px 60px rgba(0, 0, 0, .55);
  opacity: 0; transition: opacity .16s ease;
}
.nv-lightbox-figure img.is-shown { opacity: 1; }
.nv-lightbox-figure figcaption {
  color: rgba(255, 255, 255, .72); font-size: 13px; letter-spacing: .02em;
}
.nv-lightbox-close,
.nv-lightbox-arrow {
  position: absolute; border: 0; cursor: pointer; padding: 0;
  display: grid; place-items: center; color: #fff;
  background: rgba(255, 255, 255, .12); border-radius: 50%;
  transition: background-color .18s ease;
}
.nv-lightbox-close:hover,
.nv-lightbox-arrow:hover { background: rgba(255, 255, 255, .24); }
.nv-lightbox-close:focus-visible,
.nv-lightbox-arrow:focus-visible { outline: 2px solid var(--nv-accent); outline-offset: 2px; }
.nv-lightbox-close { top: 16px; right: 16px; width: 42px; height: 42px; font-size: 18px; }
.nv-lightbox-arrow { top: 50%; transform: translateY(-50%); width: 46px; height: 46px; font-size: 32px; }
.nv-lightbox-arrow.is-prev { left: 20px; }
.nv-lightbox-arrow.is-next { right: 20px; }
.nv-lightbox-arrow.is-hidden { display: none; }

/* lightbox 响应式：≤900 徽标常显、边距收紧；≤600 更紧凑 */
@media (max-width: 900px) {
  .nv-detail-media .nv-gallery-stage::after,
  .nv-detail-media .nv-gallery:not(.is-carousel)::after { opacity: 1; right: 8px; bottom: 8px; }
  .nv-lightbox { padding: 52px 12px 36px; }
  .nv-lightbox-figure img { max-height: calc(100vh - 110px); }
  .nv-lightbox-close { top: 8px; right: 8px; width: 40px; height: 40px; }
  .nv-lightbox-arrow { width: 42px; height: 42px; font-size: 28px; }
  .nv-lightbox-arrow.is-prev { left: 6px; }
  .nv-lightbox-arrow.is-next { right: 6px; }
}

@media (max-width: 600px) {
  .nv-lightbox { padding: 48px 6px 28px; }
  .nv-lightbox-figure img { max-height: calc(100vh - 96px); }
  .nv-lightbox-close { width: 38px; height: 38px; font-size: 16px; }
  .nv-lightbox-arrow { width: 38px; height: 38px; font-size: 26px; }
  .nv-lightbox-figure figcaption { font-size: 12px; }
}

/* 预览打开时锁定页面滚动 */
html.nv-lock-scroll,
html.nv-lock-scroll body { overflow: hidden; }

/* 会员中心 / 登录注册（2026-09-05） */
.nv-auth { padding: 48px 0; }
.nv-auth-card { max-width: 440px; margin: 0 auto; }
.nv-auth-alt { margin-top: 16px; font-size: 14px; color: var(--nv-text-muted); text-align: center; }
.nv-auth-alt a { color: var(--nv-primary); }
.nv-alert { padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
.nv-alert.is-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.nv-alert.is-success { background: #ecfdf5; color: #16a34a; border: 1px solid #bbf7d0; }
.nv-member { padding: 40px 0; }
.nv-member-welcome { font-size: 16px; margin-bottom: 8px; }
.nv-member-section-title { font-size: 16px; font-weight: 650; margin: 28px 0 12px; }
.nv-member-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 20px 0; }
.nv-member-item { background: #fff; border: 1px solid var(--nv-border); border-radius: var(--nv-radius); padding: 16px 18px; }
.nv-member-item .k { font-size: 13px; color: var(--nv-text-muted); }
.nv-member-item .v { font-size: 18px; font-weight: 600; margin-top: 4px; word-break: break-all; }
.nv-member-entry { display: flex; align-items: center; gap: 8px; }
.nv-member-entry .nv-btn.is-sm { padding: 7px 14px; }
.nv-member-user { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--nv-text); }
.nv-member-user .nv-avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--nv-primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; }

/* 顶栏登录 / 注册 */
.nv-auth-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.nv-auth-btn.is-login {
  color: var(--nv-text);
  background: transparent;
  border: 1px solid var(--nv-border);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04);
}
.nv-auth-btn.is-login:hover {
  color: var(--nv-primary);
  border-color: color-mix(in srgb, var(--nv-primary) 40%, var(--nv-border));
  background: color-mix(in srgb, var(--nv-primary) 6%, #fff);
  box-shadow: 0 4px 14px rgba(15, 23, 42, .08);
}
.nv-auth-btn.is-register {
  color: #fff;
  background: var(--nv-primary);
  border: 1px solid transparent;
  box-shadow: 0 6px 16px color-mix(in srgb, var(--nv-primary) 28%, transparent);
}
.nv-auth-btn.is-register:hover {
  background: var(--nv-primary-dark, var(--nv-primary));
  box-shadow: 0 8px 20px color-mix(in srgb, var(--nv-primary) 36%, transparent);
  transform: translateY(-1px);
}
.nv-auth-btn:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--nv-primary) 45%, transparent);
  outline-offset: 2px;
}

/* 会员中心操作条：退出按钮在白底卡片内必须可见（is-outline 默认白字白边是给深色背景用的） */
.nv-member-actions { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--nv-border); display: flex; gap: 12px; flex-wrap: wrap; }
.nv-member-actions .nv-btn.is-outline { color: var(--nv-primary); border-color: var(--nv-primary); }
.nv-member-actions .nv-btn.is-outline:hover { background: rgba(11, 94, 215, .08); }
.nv-btn-logout { display: inline-flex; align-items: center; gap: 8px; }
.nv-btn-logout .nv-ico { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
/* 顶栏会员入口：白底 header 上的 is-outline 按钮也必须可见 */
.nv-member-entry .nv-btn.is-outline { color: var(--nv-primary); border-color: var(--nv-primary); }
.nv-member-entry .nv-btn.is-outline:hover { background: rgba(11, 94, 215, .08); }


@media (max-width: 600px) {
  .nv-member-grid { grid-template-columns: 1fr; }
  .nv-member-entry .nv-btn.is-sm { padding: 6px 10px; }
  .nv-member-entry.is-guest { gap: 6px; }
  .nv-auth-btn { height: 32px; padding: 0 12px; font-size: 12px; }
  .nv-member-actions .nv-btn { width: 100%; justify-content: center; }
}